Search a number
-
+
4449145 = 5889829
BaseRepresentation
bin10000111110001101111001
322101001002011
4100332031321
52114333040
6235205521
752550161
oct20761571
98331064
104449145
112569788
1215a68a1
13bca13c
1483b5a1
155cd3ea
hex43e379

4449145 has 4 divisors (see below), whose sum is σ = 5338980. Its totient is φ = 3559312.

The previous prime is 4449127. The next prime is 4449163. The reversal of 4449145 is 5419444.

4449145 = 14912 + 14922.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (4449127) and next prime (4449163).

It can be written as a sum of positive squares in 2 ways, for example, as 2226064 + 2223081 = 1492^2 + 1491^2 .

It is a cyclic number.

It is not a de Polignac number, because 4449145 - 25 = 4449113 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 444910 + ... + 444919.

It is an arithmetic number, because the mean of its divisors is an integer number (1334745).

Almost surely, 24449145 is an apocalyptic number.

4449145 is the 1492-nd centered square number.

It is an amenable number.

4449145 is a deficient number, since it is larger than the sum of its proper divisors (889835).

4449145 is an equidigital number, since it uses as much as digits as its factorization.

4449145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889834.

The product of its digits is 11520, while the sum is 31.

The square root of 4449145 is about 2109.2996468022. The cubic root of 4449145 is about 164.4720807007.

Subtracting 4449145 from its reverse (5419444), we obtain a cube (970299 = 993).

The spelling of 4449145 in words is "four million, four hundred forty-nine thousand, one hundred forty-five".

Divisors: 1 5 889829 4449145